Azitra, Inc.
AZTR- Exchange
- NYSE
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001701478
No open-market purchases or sales by Azitra, Inc. insiders were filed in the last 90 days; 14 institutions reported holding it in 13F filings for Q2 2026, worth $3.26M in total; no superinvestor holds it.
Holders of 5% or more of AZTR
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Azitra, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | 13G | 9.99%6.48M shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
| Salva Francisco D. | 13D | 9.99%5.42M shares | New | Jun 24, 20261 filing | Jun 24, 2026 | SEC |
| Ayrton Capital LLC | 13G | 9.99%1.66M shares | New | May 14, 20251 filing | May 14, 2025 | SEC |
| Alumni Capital LP | 13G/A | 9.99%1.13M shares | 0.00 ppfrom 9.99% | Aug 20, 20252 filings | Dec 19, 2025 | SEC |
| Stonepine Capital Management, LLC | 13G | 9.90%1.74M shares | New | Jun 22, 20261 filing | Jun 22, 2026 | SEC |
| Dauntless Investment Group, LLC | 13G | 9.60%5.80M shares | New | Jun 25, 20261 filing | Jun 25, 2026 | SEC |
| Nantahala Capital Partners Limited Partnership | 13G | 8.40%5.45M shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
12 Schedule 13D and 13G filings on Azitra, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 20264:36 PM ET | Nantahala Capital Management, LLCand 2 others | 13G | 9.99%6.48M shares | New | Jun 30, 2026 | SEC |
| Aug 14, 20264:31 PM ET | Nantahala Capital Partners Limited Partnership | 13G | 8.40%5.45M shares | New | Jun 30, 2026 | SEC |
| Jun 25, 20262:56 PM ET | Dauntless Investment Group, LLC | 13G | 9.60%5.80M shares | New | Jun 24, 2026 | SEC |
| Jun 24, 20268:30 AM ET | Salva Francisco D. | 13D | 9.99%5.42M shares | New | Jun 16, 2026 | SEC |
| Jun 22, 20265:00 PM ET | Stonepine Capital Management, LLCand 3 others | 13G | 9.90%1.74M shares | New | Jun 16, 2026 | SEC |
| Dec 19, 20259:25 PM ET | Alumni Capital LPand 2 others | 13G/A | 9.99%1.13M shares | 0.00 ppfrom 9.99% | Nov 25, 2025 | SEC |
| Nov 14, 20254:13 PM ET | L1 Capital Global Opportunities Master Fund, Ltd. | 13G/A | 2.60%273.5K shares | −3.88 ppfrom 6.48%Below 5% | Nov 14, 2025 | SEC |
| Aug 20, 20258:00 PM ET | Alumni Capital LPand 2 others | 13G | 9.99%2.61M shares | New | Apr 24, 2025 | SEC |
| Aug 14, 20257:09 PM ET | L1 Capital Global Opportunities Master Fund, Ltd. | 13G/A | 6.48%1.52M shares | −2.75 ppfrom 9.23% | Aug 14, 2025 | SEC |
| May 15, 20257:23 PM ET | L1 Capital Global Opportunities Master Fund, Ltd. | 13G/A | 9.23%1.52M shares | +2.08 ppfrom 7.15% | Mar 31, 2025 | SEC |
| May 14, 20252:52 PM ET | Ayrton Capital LLCand 2 others | 13G | 9.99%1.66M shares | New | Mar 31, 2025 | SEC |
| Feb 14, 20254:57 PM ET | L1 Capital Global Opportunities Master Fund, Ltd. | 13G/A | 7.15%960.0K shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Azitra, Inc. shares.
No Form 144 notices for Azitra, Inc. are on file.